--- a/src/code.c	2016-06-13 10:49:31.000000000 -0400
+++ b/src/code.c	2016-06-13 10:49:22.000000000 -0400
@@ -16,6 +16,8 @@
 	extern char	* memcpy P((char *, char *, int));
 #endif

+#include <string.h>
+
 #include	"private.h"
 #include	"gsm.h"
 #include	"proto.h"
